Canon RF 24mm F1.8 Macro IS STM Lens Instructions

RF 24mm F1.8 Macro IS STM Lens
Instruction Manual

RF 24mm F1.8 Macro IS STM Lens

Thank you for purchasing a Canon product.
Canon RF24mm F1.8 MACRO IS STM is a macro lens for use with EOS R series cameras.
“IS” stands for Image Stabilizer.
“STM” stands for Stepping Motor.
Conventions used in these instructions
Warning to prevent lens or camera malfunction or damage.
Supplementary notes on using the lens and taking pictures.

Camera Firmware and
Camera Applications
Please use the latest versions of firmware and applications with the camera in use. For details on whether the firmware and applications in use are the latest version or not, and for details on updating them, please check the Canon website.
If the camera’s* firmware is not a compatible version, the following limitations will apply.

• Magnified view functionality is not available.
• In some cases, camera malfunction may occur.
• Applies to the following camera models: EOS R and EOS RP

Safety Precautions

Precautions to ensure that the camera is used safely. Read these precautions thoroughly. Make sure all details are observed in order to prevent risks and injury to the user and other people.
Warning
Details pertaining to risks that may result in death or serious injury.

• Do not look directly at the sun or other strong light sources through a lens. This may result in loss of sight.
• Do not leave a lens in the sun without the lens cap attached. The lens may concentrate entering sunlight and cause a malfunction or fire.

Caution
Details pertaining to risks that may result in injury or damage to other objects.

• Do not leave the product in places exposed to extremely high or low temperatures. The product may cause burns or injury when touched.

General Precautions

Handling Precautions

• Do not leave the product in excessive heat such as in a car in direct sunlight. High temperatures can cause the product to malfunction.
• If the lens is taken from a cold environment into a warm one, condensation may develop on the lens surface and internal parts. To prevent condensation in this case, first put the lens into an airtight plastic bag before taking it from a cold to a warm environment. Then take out the lens after it has warmed gradually. Do the same when taking the lens from a warm environment into a cold one.
• Please also read any lens-related handling precautions listed in your camera’s instruction manual.

Shooting Precautions
When the camera recovers from the auto power off status to the standby status, the front end of the lens moves in both AF/MF mode and an initial reset is performed on the focus lens.

• Do not shoot until the initial reset is completed.
• Focus again after recovering from the auto power-off status.
• To maintain the focus position in the standby status, set [Auto power off] to [Disable] on the camera.

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Do not make any changes or modifications to the equipment unless otherwise specified in the instructions. If such changes or modifications should be made, you could be required to stop the operation of the equipment.
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Nomenclature

Attaching and Detaching the Lens

Attaching the Lens
Align the lens mount indexes of the lens and camera, and turn the lens clockwise until you hear a click.
Detaching the Lens
Turn the lens counterclockwise while pressing the camera’s lens release button. Detach the lens once it has stopped turning.
Please refer to the camera’s instructions for details.

• Set the camera’s power switch to OFF when attaching or detaching the lens.

• Attach the lens cap before detaching the lens from the camera.

• When the power switch of the camera is set to OFF, the focus lens pushed forward is automatically stored.* Do not detach the lens until the lens is completely stored.

• After detaching the lens, place the lens with the rear end up and attach the dust cap to prevent the lens surface and contacts from getting scratched. Make sure the lens and dust cap mount indexes are aligned when attaching the dust cap.

• Contacts that are scratched, soiled, or have fingerprints on them may result in faulty connections or corrosion, which may lead to malfunctions. If the contacts get soiled,  clean them with a soft cloth.

• When the lens storage is set to ON on the camera.

Setting the Focus Mode

To shoot in autofocus (AF) mode, set the focus mode switch to AF.
To use only manual focusing (MF), set the focus mode switch to MF, and focus by turning the focusing ring.

• Quickly turning the focusing ring may result in delayed focus.

• Due to the structural characteristics, the focus lens driving speed may vary according to the variation in the air temperature and posture.

• Do not touch the operating part in the front of the lens while the focus lens is operating. If external pressure is applied to the moving part, the lens initialization may be performed to return the focus lens to the correct position for control purposes.

• The lens’ focusing ring is electronic.

• With a camera capable of electronic full-time manual focus, manual focusing is possible in both One-Shot AF and Servo AF modes.
  However, this requires a change in camera settings.

• When AF operation is set to One-Shot AF, manual focus is possible after autofocusing has been completed by continuing to press the shutter button halfway (electronic manual focus function). However, this requires a change in camera settings.

Please refer to the camera’s instructions for details.

Control Ring

The control ring can be assigned the functions that are commonly used with cameras, such as shutter speed and aperture settings.

The click action of the control ring allows you to have a sense of how much it is being turned. Please refer to the camera’s instructions for details on how to use the control ring.

• There are cases in which the sound of control ring operations may be recorded when shooting movies.
• The clicking sensation of the control ring can be removed by the Canon Service Center. (chargeable)

Image Stabilizer

Set the image stabilizer switch to ON when you want to use the Image Stabilizer.

• This function provides image stabilization appropriate for shooting conditions (such as shooting still subjects, panning shots, and closeup (macro) shooting).
• The Image Stabilizer will work in combination with cameras with an in-body Image Stabilizer.
• Set the image stabilizer switch to OFF when you are not going to use the Image Stabilizer.
• The shorter the focusing distance is, the less the image stabilizer effect.
• The Image Stabilizer cannot compensate for a blurred shot caused by a subject that moved.
• The Image Stabilizer may not be fully effective if you shoot from a violently shaking vehicle or other transportation.
• When using a tripod, it is recommended that you set the image stabilizer switch to OFF.
• Even with a monopod, the Image Stabilizer will be as effective as during hand-held shooting.
  However, depending on the shooting conditions, there are cases in which the Image Stabilizer effect may be less effective.

Image Stabilizer
The Image Stabilizer for this lens is suited to hand-held shots in the following conditions.

• In semi-darkened areas such as indoors or outdoors at night.
• In locations where the flash cannot be used, such as art museums and theater stages.
• In situations where your footing is uncertain.
• In situations where fast shutter speed settings cannot be used.
• Panning shots of vehicles, trains, etc.
  It compensates for vertical camera shake during panning shots in a horizontal direction and compensates for horizontal camera shake during panning shots in a vertical direction.

Hand-held Close-up (Macro) Shooting

This lens allows users to focus from infinity to a magnification of 0.5x for close-up (macro) shooting.
Hold the camera steadily
Hold the camera steadily as shown in the illustration on the right when taking hand-held close-ups (macro), and shoot carefully to minimize camera shake and prevent focus blurring.
Taking photographs using servo AF
It is recommended that the camera AF operation is set to [Servo AF] when taking close-up (macro) shots.
Refer to the camera’s instructions for further details.

• It is necessary to be careful with the following during close-up (macro) shooting.
• Camera shake creates more impact than normal shots, and the effects of the image stabilizing function are reduced.
• Depth of field becomes extremely shallow when taking close-up (macros) shots, and the focus may blur if the camera is moved forward or backward.
• The minimum focusing distance (minimum distance between the subject and the imaging area) is 0.14 m/0.45 ft. The working distance (distance between the front end of the lens and the subject) is 40 mm/1.59 in.

Exposure When Taking Close-up (Macro) Shots

Setting the Exposure
When taking photographs using TTL metering, no exposure compensation is necessary because the light coming through the lens is measured.
With TTL metering, photographing with AE (auto exposure) is possible at all focusing distances. Just select the desired picture-taking mode, then check the shutter speed and aperture before taking a picture.
Magnification and Effective f-number The aperture displayed on the camera assumes that the focus is set to infinity (∞). The actual aperture (effective f-number) becomes darker (effective f-number increases) at closer focusing distances (magnification increases). This has almost no influence on the exposure for normal picture-taking. However,  for close-up (macro) shooting, the change in the effective f-number is more than negligible.
When deciding the exposure using a hand-held exposure meter, apply the following exposure factor.

• Upper values: 1/3 stops. Lower values: 1/2 stops.

  • Conditions of the subject are very important when deciding on the correct level of exposure for close-up (macro) shooting.
    It is therefore recommended that you change the exposure level as much as possible during shooting, or that you take pictures while checking the images on the camera’s  LCD monitor.

  • During close-up (macro) shooting, it is recommended that you use either the aperture-priority AE (Av) mode or manual exposure (M) mode, in which adjustment of the depth of field and exposure is easier.

Hood (Sold separately)

The custom lens hood reduces unwanted light that causes flare and ghosting and protects the front of the lens from rain, snow, and dust.

Attaching the Hood
Align the red attachment position mark on the hood with the red dot on the front of the lens, and then turn the hood in the direction of the arrow until you hear a click.

Detaching the Hood
Keep your finger pressed down on the button located on the side of the hood, and then turn the hood in the direction of the arrow until the attachment position mark on the hood is aligned with the red dot on the front of the lens to detach it.
The hood can be reverse-mounted on the lens for storage.

• If the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur.
• Grasp and turn the base of the hood when attaching and detaching it. There are cases in which it may become deformed if the hood is turned with it grasped near to the rim.

Filters (Sold separately)

You can attach filters to the filter mounting thread on the front of the lens.

• Only one filter may be attached.
• If you need a polarizing filter, use the Canon Circular Polarizing Filter PL-C B.
• Detach the hood when adjusting the polarizing filter.
• Turn OFF the power of the camera before attaching or detaching a filter.

Close-up Lenses (Sold separately)

Attaching a 250D/500D Close-up Lens enables close-up photography. It provides the following magnifications.

• 250D: 0.10 to 0.58x
• 500D: 0.05 to 0.55x
• MF mode is recommended for accurate focusing.

Specifications

Specifications

• The lens length is measured from the lens mount surface to the front end of the lens.
  Add 23.9 mm/0.94 in. when including the lens cap and dust cap.

• The maximum diameter, length, and weight listed are for the lens itself only.

• You cannot use extenders.

• Multiple-exposure shooting is not possible when using this lens on certain cameras*.

• EOS R, RP, Ra, R5, R6

  • All data listed is measured according to Canon standards.
  • Product specifications and appearance are subject to change without notice.

CT1-D221-A
0222SZ
© CANON INC. 2022

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